Watts PWSYS-RO-STD4-ZRO Installation, Operation And Maintenance Manual Download Page 3

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Operating Temperatures

Maximum 100°F (37.8°C)

Minimum 40°F (4.4°C)

Operating Pressure

Maximum 85psi  

(6.0 kg/cm2)

Minimum 40psi  

(2.80 kg/cm2)

pH Parameters

Maximum 11

Minimum 2

Iron

Maximum 0.2 ppm

TDS 

(Total Dissolved Solids)

< 1800 ppm

Turbidity

< 5NTU

 Operational Parameters

Do not use with water that is microbiologically unsafe or of 

unknown quality without adequate disinfection before or after 

the system. System is intended to be installed on the cold water 

line only.

Contents of Reverse Osmosis (RO) System

1 Tank
1 RO Module
1  Parts Bag – With a 10" Final Filter
1 Faucet Bag
1 Manual

If any of the items are missing please contact prior to installing.

Tools Recommended for Installation

• 1¼" Hole Saw Bit for Faucet opening
•  Round Knockout Punch for Stainless 

Sinks 1¼"

• Adjustable Wrench
• Sharp Knife
• 

1

2

" & 

5

8

" Open End Wrenches

• Phillips Screw Driver
• Needle Nose Pliers – Adjustable Pliers
• Electric Drill
• 

1

8

" Drill Bit

• 

1

4

" Drill Bit

• 

3

8

" Drill Bit

Hardness:

 Recommended hardness not to exceed 10 grains per 

gallon, or 170ppm . System will operate with hardness over 10 grains 

but the membrane life may be shortened . Addition of a water soft-

ener may lengthen the membrane life .

Water Pressure:

 The operating water pressure in your home should 

be tested over a 24 hour period to attain the maximum pressure . 

If the incoming water pressure is above 85psi a pressure regula-

tor is recommended and if over 100psi then a pressure regulator is 

required . 

Copper Tubing:

 Reverse Osmosis water should not be run through 

copper tubing as the purity of the water will leach copper causing 

an objectional taste in water and pin holes may form in the tubing. 

Watts supplies speciality filters that can be used if copper tubing 

follows the Reverse Osmosis unit . Be sure to follow any state or local 

regulations during installation .

Drill a Hole for the Faucet in a Porcelain Sink

Note:  Most sinks are predrilled with 1½" or 1¼" diameter hole 

that you can use for your RO faucet. (If you are already using it 

for a sprayer or soap dispenser, see Step 2).
Caution:  Porcelain sinks are extremely hard and can crack or 

chip easily. 
Use extreme caution when drilling. Watts accepts no responsi-

bility for damage resulting from the installation of faucet.

Step A –

  Determine desired location for  

the RO faucet on your sink 

and place a piece of masking 

tape on over where the hole is 

to be drilled . Mark the center 

of the hole on the tape .

Step B –

  Using a variable speed drill 

set on the slowest speed, drill 

1

8

" pilot hole through both 

porcelain and metal casing 

of sink at the marked center 

of the desired location . Use 

lubricating oil or liquid soap 

to keep the drill bit cool (If drill 

bit gets hot, it may cause the 

porcelain to crack or chip) .

Step C –

  Using a 1¼" hole saw, pro-

ceed to drill the large hole . 

Keep drill speed on the slow-

est speed and use lubricating 

oil or liquid soap to keep the 

hole saw cool during cutting .

Step D –

  Make sure the surroundings 

of the sink are cooled before 

mounting the faucet to the 

sink after drilling and remove 

all sharp edges . 

STEP 1

Punch a Hole for the Faucet in a Stainless 

Steel Sink

Note: If mounting faucet to a Stainless 

Steel Sink, you will need a 1¼" Hole 

Punch. The faucet opening should be 

centered between the back splash 

and the edge of the sink, ideally on the 

same side as the vertical drain pipe.

Step A –

  Drill a ¼" pilot hole. Use a 

1

2

Hole Punch and an adjustable 

wrench to punch the hole in the 

sink. Change to the 1¼" Hole 

Punch to enlarge the hole

The faucet can now be installed .

OR

Summary of Contents for PWSYS-RO-STD4-ZRO

Page 1: ...onth Maintenance 8 Annual Maintenance 8 Membrane Replacement 9 Procedure for Extended Non Use More than 2 months 9 Troubleshooting 10 Parts List 11 Arsenic Facts 12 Service Record 13 Limited Warranty 16 Model PWSYS RO STD4 ZRO PURE WATER System tested and certified by NSF International against NSF ANSI Standard 58 for the reduction of the claims specified on the performance data sheet Note Do not ...

Page 2: ... Carbon filter recommended change 6 months The second stage contains a five micron carbon block filter This helps ensure that chlorine and other materials that cause bad taste and odor are greatly reduced Stage 3 Membrane recommended change 2 5 years Stage 3 is the heart of the reverse osmosis system the RO membrane This semi permeable membrane will ef fectively take out TDS Sodium and heavy metal...

Page 3: ...lies speciality filters that can be used if copper tubing follows the Reverse Osmosis unit Be sure to follow any state or local regulations during installation Drill a Hole for the Faucet in a Porcelain Sink Note Most sinks are predrilled with 1 or 1 diameter hole that you can use for your RO faucet If you are already using it for a sprayer or soap dispenser see Step 2 Caution Porcelain sinks are ...

Page 4: ...edges be removed before inserting into fitting Fitting grips before it seals Ensure tube is pushed into the tube stop Push the tube into the fitting to the tube stop The collet gripper has stainless steel teeth which hold the tube firmly in position while the O ring provides a perma nent leak proof seal Pull on the tube to check that it is secure It is a good practice to test the system prior to l...

Page 5: ... The parts bag has 2 self tapping screws Using an electric drill with a Phillips bit screw them into the cabinet wall 6 apart and 16 from the bottom of the cabinet Note Do not cut any RO system tubes at this time STEP 2 Watts Chrome Top Mount Faucet Installation Gather and identify the faucet pieces Step A Remove faucet base and faucet spout from their respective plastic bags From above the sink f...

Page 6: ...igerator ice maker may be tee d into this blue tube and should be spliced in between the final filter and the RO faucet STEP 7 Check Air Pressure in the Tank Note Check air pressure when tank is empty of water Check air pressure in the storage tank when you notice a de crease in available water from the RO system Air can be added with a bicycle pump using the schrader valve that is located on the ...

Page 7: ...arness connector labeled Transformer Step C Plug the transformer into the electrical outlet under the sink Step D Open the RO faucet and leave it open until water begins to trickle out it will come out slowly Step E After water trickles out of the faucet close the RO faucet allowing the storage tank to fill with water It may take 4 to 6 hours to fill the tank completely depending on the pro ductio...

Page 8: ...mbrane 1 Carbon Block Filters 1 Final Inline Filter Note Sanitizing of unit is recommended Step A Perform steps A through E in the Six Month System Main tenance Note If not sanitizing the system skip to step H Step B Remove the RO membrane from its housing and rest in a clean sanitary place Refer to Membrane Replacement section on Page 9 for directions on removing the mem brane Replace cap onto em...

Page 9: ...the Adapt A Valve clockwise until it stops Step B Open the RO Faucet and allow water to drain from the tank until it is completely empty Removing the Membrane Step A Use a 5 8 wrench to remove the Green Tube fitting on the left side of the horizontal membrane housing end with one elbow Step B Remove the cap from the membrane housing by turning it counterclockwise to loosen Note A double sided wren...

Page 10: ...ence with initial start up of the RO system This milky look will disappear during normal use within 1 2 weeks If condition reoccurs after filter changes drain tank 1 to 2 times 3 Faucet Dripping Needs adjustment see page 12 4 Pump short cycles Ball valve on tank closed Open the ball valve on the top of the tank Blue tube blocked between the tank and RO system Faulty pressure switch Remove kinked d...

Page 11: ... 4 7300075 DOUBLE CHECK VALVE 5 7300015 PRESSURE SWITCH 6 7300001 BOOSTER PUMP 1 4 QC 7 7300000 TRANSFORMER 8 7300076 SELENOID VALVE 9 7100203 TOP MOUNT FAUCET CHROME 10 7100446 CARBON BLOCK FILTER 11 7100454 GAC POST FILTER 12 710122 REVERSE OSMOSIS MEMBRANE 13 7100330 SEDIMENT FILTER 14 7300039 CONNECTOR 1 4 M X 1 4 QC 15 7300029 CONNECTOR 3 8 C X 1 4 M Item EDP DESCRIPTION 16 7300034 ELBOW 1 4 ...

Page 12: ...also called chloramine where it does convert trivalent arsenic to pentavalent arsenic may not con vert all the trivalent arsenic in to pentavalent arsenic If you get your water from a public water utility contact the utility to find out if free chlorine or combined chlorine is used in the water system This Watts reverse osmosis system is designed to remove up to 98 of pentavalent arsenic It will n...

Page 13: ...3 Date of Purchase Date of Install Installed by Date 1st stage Sediment 6 months 2nd stage Carbon 6 months 3rd stage Carbon 6 months Final Filter Carbon 1 year TFM Membrane 2 5 years Notes Service Record ...

Page 14: ...14 ...

Page 15: ...15 ...

Page 16: ...emedies stated in such warranties are exclusive and are the only remedies for breach of warranty EXCEPT FOR THE APPLICABLE PRODUCT WARRANTY IF ANY WATTS MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW WATTS HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND F...

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